gboolean
gtk_mng_view_load_mng_from_memory_remaining (GtkMngView * mng_view,
guchar * data_to_eat,
guint data_size)
{
mng_read_pushdata (mng_view->MNG_handle, data_to_eat, data_size, MNG_FALSE);
//printf("Calling read\n");
mng_read(mng_view->MNG_handle);
//printf("mng_get_totalframes %d\n", mng_get_totalframes (mng_view->MNG_handle));
//printf("mng_get_totallayers %d\n", mng_get_totallayers (mng_view->MNG_handle));
//printf("mng_get_totalplaytime %d\n", mng_get_totalplaytime (mng_view->MNG_handle));
//printf("Iterate chunks\n");
int i = 0;
mng_iterate_chunks (mng_view->MNG_handle, 0, myiterchunk);
for (i = 0; i < 1000; i++) {
//printf("calling iterate i %d\n", i);
//printf("out of iterate\n");
}
printf("Calling display\n");
//mng_display(mng_view->MNG_handle);
//printf("Display over\n");
printf("mng_get_framecount %d\n", mng_get_framecount(mng_view->MNG_handle));
printf("mng_get_layercount %d\n", mng_get_layercount(mng_view->MNG_handle));
printf("mng_get_playtime %d\n", mng_get_playtime(mng_view->MNG_handle));
printf("mng_get_ticks %d\n", mng_get_ticks(mng_view->MNG_handle));
printf("mng_get_starttime %d\n", mng_get_starttime (mng_view->MNG_handle));
printf("mng_get_runtime %d\n", mng_get_runtime (mng_view->MNG_handle));
printf("mng_get_currentframe %d\n", mng_get_currentframe (mng_view->MNG_handle));
printf("mng_get_currentlayer %d\n", mng_get_currentlayer (mng_view->MNG_handle));
printf("mng_get_currentplaytime %d\n", mng_get_currentplaytime (mng_view->MNG_handle));
printf("mng_get_totalframes %d\n", mng_get_totalframes (mng_view->MNG_handle));
printf("mng_get_totallayers %d\n", mng_get_totallayers (mng_view->MNG_handle));
printf("mng_get_totalplaytime %d\n", mng_get_totalplaytime (mng_view->MNG_handle));
return TRUE;
}
ILboolean iLoadMngInternal()
{
mng_handle mng;
if (iCurImage == NULL) {
ilSetError(IL_ILLEGAL_OPERATION);
return IL_FALSE;
}
mng = mng_initialize(MNG_NULL, mymngalloc, mymngfree, MNG_NULL);
if (mng == MNG_NULL) {
ilSetError(IL_LIB_MNG_ERROR);
return IL_FALSE;
}
// If .mng background is available, use it.
mng_set_usebkgd(mng, MNG_TRUE);
// Set the callbacks.
mng_setcb_errorproc(mng, mymngerror);
mng_setcb_openstream(mng, mymngopenstream);
mng_setcb_closestream(mng, mymngclosestream);
mng_setcb_readdata(mng, (mng_readdata)mymngreadstream);
mng_setcb_gettickcount(mng, mymnggetticks);
mng_setcb_settimer(mng, mymngsettimer);
mng_setcb_processheader(mng, mymngprocessheader);
mng_setcb_getcanvasline(mng, mymnggetcanvasline);
mng_setcb_refresh(mng, mymngrefresh);
mng_read(mng);
mng_display(mng);
return ilFixImage();
}
bool
CMNGAnimation::Load(const char* filename, IFileSystem& fs)
{
this->~CMNGAnimation();
// open the file
m_file = fs.Open(filename, IFileSystem::read);
if (m_file == NULL) {
return false;
}
// initialize MNG playback
m_stream = mng_initialize(this, CB_Allocate, CB_Free, NULL);
// set all of the callbacks
mng_setcb_openstream(m_stream, CB_OpenStream);
mng_setcb_closestream(m_stream, CB_CloseStream);
mng_setcb_readdata(m_stream, CB_ReadData);
mng_setcb_processheader(m_stream, CB_ProcessHeader);
mng_setcb_gettickcount(m_stream, CB_GetTickCount);
mng_setcb_getcanvasline(m_stream, CB_GetCanvasLine);
mng_setcb_refresh(m_stream, CB_Refresh);
mng_setcb_settimer(m_stream, CB_SetTimer);
// do some reading
if (mng_read(m_stream) != MNG_NOERROR) {
return false;
}
return true;
}
/**
** Load a MNG
**
** @param name Name of the MNG file
*/
int Mng::Load(const std::string &name)
{
this->name = LibraryFileName(name.c_str());
handle = mng_initialize(this, my_alloc, my_free, MNG_NULL);
if (handle == MNG_NULL) {
return -1;
}
mng_setcb_openstream(handle, my_openstream);
mng_setcb_closestream(handle, my_closestream);
mng_setcb_readdata(handle, my_readdata);
mng_setcb_processheader(handle, my_processheader);
mng_setcb_processmend(handle, my_processmend);
mng_setcb_getcanvasline(handle, my_getcanvasline);
mng_setcb_refresh(handle, my_refresh);
mng_setcb_gettickcount(handle, my_gettickcount);
mng_setcb_settimer(handle, my_settimer);
mng_setcb_errorproc(handle, my_errorproc);
mng_read(handle);
if (surface && iteration != 0x7fffffff) {
mng_display(handle);
}
if (!surface || iteration == 0x7fffffff) {
return -1;
}
return 0;
}
/**
** Load a MNG
**
** @param name Name of the MNG file
*/
int Mng::Load(const char *name)
{
mng_retcode myretcode;
char buf[PATH_MAX];
LibraryFileName(name, buf, sizeof(buf));
this->name = new_strdup(buf);
handle = mng_initialize(this, my_alloc, my_free, MNG_NULL);
if (handle == MNG_NULL) {
return -1;
}
mng_setcb_openstream(handle, my_openstream);
mng_setcb_closestream(handle, my_closestream);
mng_setcb_readdata(handle, my_readdata);
mng_setcb_processheader(handle, my_processheader);
mng_setcb_processmend(handle, my_processmend);
mng_setcb_getcanvasline(handle, my_getcanvasline);
mng_setcb_refresh(handle, my_refresh);
mng_setcb_gettickcount(handle, my_gettickcount);
mng_setcb_settimer(handle, my_settimer);
mng_setcb_errorproc(handle, my_errorproc);
mng_read(handle);
if (surface && iteration != 0x7fffffff) {
myretcode = mng_display(handle);
}
if (!surface || iteration == 0x7fffffff) {
return -1;
}
return 0;
}
int main(int argc, char **argv)
{
int i, rc;
SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER);
SDL_EventState(SDL_KEYDOWN, SDL_ENABLE);
SDL_EventState(SDL_QUIT, SDL_ENABLE);
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'h':
usage(argc, argv);
return 0;
default:
usage(argc, argv);
return 1;
}
continue;
}
rc = mng_read(argv[i], argv[i], mng_callback);
if (rc < 0)
fprintf(stderr, "reading '%s' returned %d\n", argv[i], rc);
}
return 0;
}
//---------------------------------------------------------------------------
bool __fastcall TMainForm::DumpTree( void )
{
mng_handle hMNG;
// let's initialize the library
hMNG = mng_initialize( (mng_ptr)this, Alloc, Free, NULL );
if( !hMNG ) // did that work out ?
{
MNGError( hMNG, "Cannot initialize libmng." );
mng_cleanup( &hMNG ); // Always cleanup the library
MsgBoxStop( "Bye!" );
Application->Terminate(); // Exit now
}
// setup callbacks
if( (mng_setcb_openstream ( hMNG, OpenStream ) != 0) ||
(mng_setcb_closestream ( hMNG, CloseStream ) != 0) ||
(mng_setcb_processheader( hMNG,ProcessHeader ) != 0) ||
(mng_setcb_readdata ( hMNG, FileReadData ) != 0)
)
{
MNGError( hMNG, "Cannot set callbacks for libmng.");
mng_cleanup( &hMNG ); // Always cleanup the library
MsgBoxStop( "Bye!" );
Application->Terminate(); // Exit now
}
else
{
// read the file into memory
if( mng_read( hMNG ) != 0 )
{
// Because we read the whole file in first,
// here is where bad input files first choke !
MNGError( hMNG, "Cannot read the file." );
mng_cleanup( &hMNG ); // Always cleanup the library
return false;
}
else
{
// run through the chunk list
if( mng_iterate_chunks( hMNG, 0, IterateChunks ) != 0 )
{
MNGError( hMNG, "Error Getting Chunk info!" );
mng_cleanup( &hMNG ); // Always cleanup the library
return false; // Errors may occur with bad chunk data
}
}
}
mng_cleanup( &hMNG ); // Always cleanup the library
return true;
}
/**
* Read a MNG image.
* This function returns always a null dat_ptr pointer because the
* referenced image is stored in the mng context.
* \param mng MNG context previously returned by mng_init().
* \param pix_width Where to put the image width.
* \param pix_height Where to put the image height.
* \param pix_pixel Where to put the image bytes per pixel.
* \param dat_ptr Where to put the allocated data pointer.
* \param dat_size Where to put the allocated data size.
* \param pix_ptr Where to put pointer at the start of the image data.
* \param pix_scanline Where to put the length of a scanline in bytes.
* \param pal_ptr Where to put the allocated palette data pointer. Set to 0 if the image is RGB.
* \param pal_size Where to put the palette size in number of colors. Set to 0 if the image is RGB.
* \param tick Where to put the number of tick of the frame. The effective time can be computed dividing by mng_frequency_get().
* \param f File to read.
* \return
* - == 0 ok
* - == 1 end of the mng stream
* - < 0 error
*/
adv_error adv_mng_read(
adv_mng* mng,
unsigned* pix_width, unsigned* pix_height, unsigned* pix_pixel,
unsigned char** dat_ptr, unsigned* dat_size,
unsigned char** pix_ptr, unsigned* pix_scanline,
unsigned char** pal_ptr, unsigned* pal_size,
unsigned* tick,
adv_fz* f)
{
return mng_read(mng, pix_width, pix_height, pix_pixel,
dat_ptr, dat_size, pix_ptr, pix_scanline,
pal_ptr, pal_size, tick, f, 0);
}
mng_handle mng_load(char* filename, int *width, int *height)
{
mng_handle mngh;
mng_anim *mng;
mng = (mng_anim*)malloc(sizeof(mng_anim));
if (!mng) {
iprint(MSG_ERROR, "%s: Unable to allocate memory for MNG data\n",
__FUNCTION__);
return MNG_NULL;
}
memset(mng, 0, sizeof(mng_anim));
mngh = mng_initialize(mng, fb_mng_memalloc, fb_mng_memfree,
MNG_NULL);
if (mngh == MNG_NULL) {
iprint(MSG_ERROR, "%s: mng_initialize failed\n", __FUNCTION__);
goto freemem_fail;
}
if (mng_init_callbacks(mngh)) {
print_mng_error(mngh, "mng_init_callbacks failed");
goto cleanup_fail;
}
/* Load the file into memory */
if (!mng_readfile(mngh, filename))
goto cleanup_fail;
/* Read and parse the file */
if (mng_read(mngh) != MNG_NOERROR) {
/* Do something about it. */
print_mng_error(mngh, "mng_read failed");
goto cleanup_fail;
}
mng->num_frames = mng_get_totalframes(mngh);
*width = mng->canvas_w;
*height = mng->canvas_h;
return mngh;
cleanup_fail:
mng_cleanup(&mngh);
freemem_fail:
free(mng);
return MNG_NULL;
}
/**
* Read a MNG image and implicitely call adv_mng_done().
* This function returns always a not null dat_ptr pointer.
* The mng context is always destroyed. Also if an error
* is returned.
*/
adv_error adv_mng_read_done(
adv_mng* mng,
unsigned* pix_width, unsigned* pix_height, unsigned* pix_pixel,
unsigned char** dat_ptr, unsigned* dat_size,
unsigned char** pix_ptr, unsigned* pix_scanline,
unsigned char** pal_ptr, unsigned* pal_size,
unsigned* tick,
adv_fz* f)
{
adv_error r;
r = mng_read(mng, pix_width, pix_height, pix_pixel,
dat_ptr, dat_size, pix_ptr, pix_scanline,
pal_ptr, pal_size, tick, f, 1);
if (r != 0)
free(mng->dat_ptr);
free(mng->dlt_ptr);
free(mng);
return r;
}
bool ImageJngFile::Load (uint8 *iBuffer, size_t iSize)
{
mng_retcode retcode;
const int magicSize = 8;
const char magicMNG[] = "\x8aMNG\x0d\x0a\x1a\x0a";
const char magicJNG[] = "\x8bJNG\x0d\x0a\x1a\x0a";
// check for magic JNG/MNG bytes. If not correct, we can skip
// messing around w/ libmng entirely.
if ((iSize < 8) ||
((memcmp ((void*)iBuffer, (void*)&magicMNG, magicSize)) &&
(memcmp ((void*)iBuffer, (void*)&magicJNG, magicSize))))
{
return false;
}
handle = mng_initialize (mng_ptr(this), cb_alloc,
cb_free, MNG_NULL);
if (!handle)
{
Report (object_reg, CS_REPORTER_SEVERITY_WARNING,
"failed to initialize libmng");
return false;
}
buffer = iBuffer;
bufptr = buffer;
bufferSize = iSize;
if ((mng_setcb_openstream (handle, cb_openstream) != MNG_NOERROR) ||
(mng_setcb_closestream (handle, cb_closestream) != MNG_NOERROR) ||
(mng_setcb_readdata (handle, cb_readdata) != MNG_NOERROR) ||
(mng_setcb_processheader(handle, cb_processheader) != MNG_NOERROR) ||
(mng_setcb_getcanvasline(handle, cb_getcanvasline) != MNG_NOERROR) ||
(mng_setcb_refresh(handle, cb_imagerefresh) != MNG_NOERROR) ||
(mng_setcb_gettickcount(handle, cb_gettickcount) != MNG_NOERROR) ||
(mng_setcb_settimer(handle, cb_settimer) != MNG_NOERROR))
{
ReportLibmngError (object_reg, handle, "failed to set libmng callbacks");
mng_cleanup (&handle);
return false;
}
retcode = mng_read (handle);
if (retcode != MNG_NOERROR)
{
if (retcode != MNG_INVALIDSIG) // maybe its just not an jng/mng...
ReportLibmngError (object_reg, handle, "failed to read data");
mng_cleanup (&handle);
return false;
}
// Don't read PNGs
if (mng_get_sigtype (handle) == mng_it_png)
{
delete[] NewImage;
mng_cleanup (&handle);
return false;
}
// Even on still images, libmng issues timer requests.
// so, as long as the requests are 'immediate' we continue
// displaying. If a delay is requested we end loading.
timer = 2;
retcode = mng_display (handle);
while ((retcode == MNG_NEEDTIMERWAIT) && (timer <= 1))
{
retcode = mng_display_resume (handle);
}
if ((retcode != MNG_NOERROR) && (retcode != MNG_NEEDTIMERWAIT))
{
ReportLibmngError (object_reg, handle, "failed to display data");
mng_cleanup (&handle);
return false;
}
doWait = (retcode == MNG_NEEDTIMERWAIT);
animated = doWait;
if (NewImage)
{
csRGBpixel *rgbImage =
csPackRGBA::CopyUnpackRGBAtoRGBpixel (NewImage, Width*Height);
ConvertFromRGBA (rgbImage);
// Subsequent images may contain alpha, so don't check
if (!doWait) CheckAlpha();
}
if (mng_get_sigtype (handle) != mng_it_mng)
{
delete[] NewImage; NewImage = 0;
mng_cleanup (&handle);
handle = 0;
}
return true;
}
/**
* \brief MPlayer callback: Open MNG stream.
* \param[in] demuxer demuxer structure
* \return demuxer structure on success, \p NULL on error
*/
static demuxer_t * demux_mng_open(demuxer_t * demuxer)
{
mng_priv_t * mng_priv;
mng_handle h_mng;
mng_retcode mng_ret;
sh_video_t * sh_video;
// create private data structure
mng_priv = calloc(1, sizeof(mng_priv_t));
//stream pointer into private data
mng_priv->stream = demuxer->stream;
// initialize MNG image instance
h_mng = mng_initialize((mng_ptr)mng_priv, demux_mng_alloc,
demux_mng_free, MNG_NULL);
if (!h_mng) {
mp_msg(MSGT_DEMUX, MSGL_ERR,
"demux_mng: could not initialize MNG image instance\n");
free(mng_priv);
return NULL;
}
// MNG image handle into private data
mng_priv->h_mng = h_mng;
// set required MNG callbacks
if (mng_setcb_openstream(h_mng, demux_mng_openstream) ||
mng_setcb_closestream(h_mng, demux_mng_closestream) ||
mng_setcb_readdata(h_mng, demux_mng_readdata) ||
mng_setcb_processheader(h_mng, demux_mng_processheader) ||
mng_setcb_getcanvasline(h_mng, demux_mng_getcanvasline) ||
mng_setcb_refresh(h_mng, demux_mng_refresh) ||
mng_setcb_gettickcount(h_mng, demux_mng_gettickcount) ||
mng_setcb_settimer(h_mng, demux_mng_settimer) ||
mng_set_canvasstyle(h_mng, MNG_CANVAS_RGBA8)) {
mp_msg(MSGT_DEMUX, MSGL_ERR,
"demux_mng: could not set MNG callbacks\n");
mng_cleanup(&h_mng);
free(mng_priv);
return NULL;
}
// start reading MNG data
mng_ret = mng_read(h_mng);
if (mng_ret) {
mp_msg(MSGT_DEMUX, MSGL_ERR,
"demux_mng: could not start reading MNG data: "
"mng_retcode %d\n", mng_ret);
mng_cleanup(&h_mng);
free(mng_priv);
return NULL;
}
// check that MNG header is processed now
if (!mng_priv->header_processed) {
mp_msg(MSGT_DEMUX, MSGL_ERR,
"demux_mng: internal error: header not processed\n");
mng_cleanup(&h_mng);
free(mng_priv);
return NULL;
}
// create a new video stream header
sh_video = new_sh_video(demuxer, 0);
// Make sure the demuxer knows about the new video stream header
// (even though new_sh_video() ought to take care of it).
// (Thanks to demux_gif.c for this.)
demuxer->video->sh = sh_video;
// Make sure that the video demuxer stream header knows about its
// parent video demuxer stream (this is getting wacky), or else
// video_read_properties() will choke.
// (Thanks to demux_gif.c for this.)
sh_video->ds = demuxer->video;
// set format of pixels in video packets
sh_video->format = mmioFOURCC(32, 'B', 'G', 'R');
// set framerate to some value (MNG does not have a fixed framerate)
sh_video->fps = 5.0f;
sh_video->frametime = 1.0f / sh_video->fps;
// set video frame parameters
sh_video->bih = malloc(sizeof(*sh_video->bih));
sh_video->bih->biCompression = sh_video->format;
sh_video->bih->biWidth = mng_priv->width;
sh_video->bih->biHeight = mng_priv->height;
sh_video->bih->biBitCount = 32;
sh_video->bih->biPlanes = 1;
// Set start time to something > 0.
// - This is required for the variable frame time mechanism
// (GIF, MATROSKA, MNG) in video.c to work for the first frame.
sh_video->ds->pts = MNG_START_PTS;
// set private data in demuxer and return demuxer
demuxer->priv = mng_priv;
return demuxer;
}
static bool sReadMNG(Stream &stream, GBitmap *bitmap)
{
PROFILE_SCOPE(sReadMNG);
mngstuff mnginfo;
dMemset(&mnginfo, 0, sizeof(mngstuff));
mng_handle mng = mng_initialize(&mnginfo, mngMallocFn, mngFreeFn, MNG_NULL);
if(mng == NULL)
return false;
// setup the callbacks
mng_setcb_errorproc(mng, mngFatalErrorFn);
mng_setcb_openstream(mng, mngOpenDataFn);
mng_setcb_closestream(mng, mngCloseDataFn);
mng_setcb_readdata(mng, mngReadDataFn);
mng_setcb_processheader(mng, mngProcessHeaderFn);
mng_setcb_getcanvasline(mng, mngCanvasLineFn);
mng_setcb_refresh(mng, mngRefreshFn);
mng_setcb_gettickcount(mng, mngGetTicksFn);
mng_setcb_settimer(mng, mngSetTimerFn);
mnginfo.image = bitmap;
mnginfo.stream = &stream;
mng_read(mng);
mng_display(mng);
// hacks :(
// libmng doesn't support returning data in gray/gray alpha format,
// so we grab as RGB/RGBA and just cut off the g and b
mng_uint8 colorType = mng_get_colortype(mng);
switch(colorType)
{
case MNG_COLORTYPE_GRAY:
case MNG_COLORTYPE_JPEGGRAY:
{
GBitmap temp(*bitmap);
bitmap->deleteImage();
bitmap->allocateBitmap(temp.getWidth(), temp.getHeight(), false, GFXFormatA8);
// force getColor to read in in the same color value for each channel
// since the gray colortype has the real alpha in the first channel
temp.setFormat( GFXFormatA8 );
ColorI color;
for(U32 row = 0; row < bitmap->getHeight(); row++)
{
for(U32 col = 0; col < bitmap->getWidth(); col++)
{
temp.getColor(col, row, color);
bitmap->setColor(col, row, color);
}
}
}
break;
}
mng_cleanup(&mng);
// Check this bitmap for transparency
bitmap->checkForTransparency();
return true;
}
int fixit (char * zFilenameI,
char * zFilenameO)
{
userdatap pMydata;
mng_retcode iRC;
/* get a data buffer */
pMydata = (userdatap)calloc (1, sizeof (userdata));
if (pMydata == NULL) /* oke ? */
{
fprintf (stderr, "Cannot allocate a data buffer.\n");
return 1;
}
pMydata->hFileO = 0; /* initialize some stuff! */
pMydata->hHandleI = MNG_NULL;
pMydata->hHandleO = MNG_NULL;
pMydata->bHasSAVE = MNG_FALSE;
pMydata->bHasTERM = MNG_FALSE;
pMydata->bIsJASC = MNG_TRUE;
pMydata->iLastchunk = MNG_UINT_HUH;
pMydata->iTermaction = 0;
pMydata->iIteraction = 0;
pMydata->iDelay = 0;
pMydata->iItermax = 0;
/* can we open the input file ? */
if ((pMydata->hFileI = fopen (zFilenameI, "rb")) == NULL)
{ /* error out if we can't */
fprintf (stderr, "Cannot open input file %s.\n", zFilenameI);
return 1;
}
/* let's initialize the library */
pMydata->hHandleI = mng_initialize ((mng_ptr)pMydata, myalloc, myfree, MNG_NULL);
if (!pMydata->hHandleI) /* did that work out ? */
{
fprintf (stderr, "Cannot initialize libmng.\n");
iRC = 1;
}
else
{ /* some informatory messages */
fprintf (stderr, "Compiled with libmng %s.\n", MNG_VERSION_TEXT);
fprintf (stderr, "Running with libmng %s.\n", mng_version_text());
/* setup callbacks */
if ( ((iRC = mng_setcb_openstream (pMydata->hHandleI, myopenstream )) != 0) ||
((iRC = mng_setcb_closestream (pMydata->hHandleI, myclosestream )) != 0) ||
((iRC = mng_setcb_readdata (pMydata->hHandleI, myreaddata )) != 0) ||
((iRC = mng_setcb_errorproc (pMydata->hHandleI, myprocesserror)) != 0) )
fprintf (stderr, "Cannot set callbacks for libmng.\n");
else
{ /* reaad the file into memory */
if ((iRC = mng_read (pMydata->hHandleI)) != 0)
fprintf (stderr, "Cannot read the input file.\n");
else
{ /* run through the chunk list to get TERM */
if ((iRC = mng_iterate_chunks (pMydata->hHandleI, 0, myiterchunk)) != 0)
fprintf (stderr, "Cannot iterate the chunks.\n");
else
{
if (pMydata->iError) /* did the iteration fail somehow ? */
iRC = pMydata->iError;
else
{ /* can we open the output file ? */
if ((pMydata->hFileO = fopen (zFilenameO, "wb")) == NULL)
{ /* error out if we can't */
fprintf (stderr, "Cannot open output file %s.\n", zFilenameO);
iRC = 1;
}
else
{ /* let's initialize the library */
pMydata->hHandleO = mng_initialize ((mng_ptr)pMydata, myalloc, myfree, MNG_NULL);
if (!pMydata->hHandleO) /* did that work out ? */
{
fprintf (stderr, "Cannot initialize libmng.\n");
iRC = 1;
}
else
{ /* setup callbacks */
if ( ((iRC = mng_setcb_openstream (pMydata->hHandleO, myopenstream )) != 0) ||
((iRC = mng_setcb_closestream (pMydata->hHandleO, myclosestream)) != 0) ||
((iRC = mng_setcb_writedata (pMydata->hHandleO, mywritedata )) != 0) )
fprintf (stderr, "Cannot set callbacks for libmng.\n");
else
{
if ((iRC = mng_create (pMydata->hHandleO)) != 0)
fprintf (stderr, "Cannot create a new MNG.\n");
else
{ /* run through the chunk again and create the new file */
if ((iRC = mng_iterate_chunks (pMydata->hHandleI, 0, myiterchunk)) != 0)
fprintf (stderr, "Cannot iterate the chunks.\n");
else
{ /* did the iteration fail somehow ? */
if (pMydata->iError)
iRC = pMydata->iError;
else
{ /* now write the created new file !! */
if ((iRC = mng_write (pMydata->hHandleO)) != 0)
fprintf (stderr, "Cannot write the output file.\n");
}
}
}
}
/* cleanup the library */
mng_cleanup (&pMydata->hHandleO);
}
/* cleanup output file */
fclose (pMydata->hFileO);
}
}
}
}
}
mng_cleanup (&pMydata->hHandleI); /* cleanup the library */
}
fclose (pMydata->hFileI); /* cleanup input file and userdata */
free (pMydata);
return iRC;
}